Design And Implementation Of Automatic Combustion Control System For Hot Blast Stove

The domestic and foreign hot-blast stove develops towards the maximization, diversification at present, Foreign large hot air stove equipment are basically achieved the automatic burning. While domestic hot air furnace equipment combustion control is still groping in the absence of corresponding experience, mainly theoretical support. For most conventional control-oriented, When implementation wind warm adjustment depends on the experience manual operation. On the one hand increased labor intensity for the operator, There is a mistake to bring the hidden safety production. On the other hand because of the need to regulate wind temperature changes more parameters. The manual operation is very easy to create the operating mode the undulation. Influence hot-blast stove equipment stable movement.In view of domestic iron and steel enterprise blast furnace continuous production as well as blast furnace furnace conditions undulation to hot-blast stove noble character warm stable demand, The paper regards moving the steel2650m3blast furnace in qian’an Iron and Steel Co. as the prototype, Proceeding from technology and equipment features, and raised the automatic combustion control theory and strategy. Take hot-blast stove burning model as foundation, Equilibrate from the supplies, energy balance, setting out balancedly. To determine the effect the automatic burning stoves and automatic control function relationship between important parameters in the course of mathematical models. Exploit the function of control offered by Quantum PLC control system. Have designed the control return circuit of each important parameter and controlled the functional diagram through the software configuration, and designed and burnt and changed control and warning function of stove course automatically. Thus has realized hot-blast stove burns and trades the stove process steadily, safe, moves economically.The practice proved that, and trades the stove control system through this set of equipment automatic burning the implementation, has realized the hot blast stove blower warm1100-1310degree between scope adjustment ability, enormous enhancement hot-blast stove wind warm, enhanced the blast furnace output, has brought the good economic efficiency, simultaneously reduced operator’s labor intensity, raised the hot-blast stove equipment automated level.